Wormholelike mesoporous carbon supported PtRu catalysts toward methanol electrooxidation

142The pore diameter of WMCs plays an important role in the electrochemical activity of PtRu towards alcohol electrooxidation reaction. When the pore diameter of WMCs is more than twice of Pt particle size (Dp>2dPt), the easier mass transfer and higher larger electrochemical surface area leads to the higher activity towards alcohol electrooxidation, especially in the case of isopropanol with bigger molecular size.